Portable aviation clamp



FIG. 1 is a top plan view of a portable aviation clamp showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a left side elevational view thereof.

The broken line showing of two holes in FIG. 1 is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a portable aviation clamp, as shown and described. 